Lighting device



FIG. 1 is a front view of a first embodiment of a lighting device in accordance with my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top perspective view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design or a specified embodiment thereof. 

CLAIM The ornamental design for a lighting device, as shown and described. 